Adaptec 131U2 Hardware Guide - Page 30

External Ultra2 SCSI Connector 68-pin

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AAA-130U2 Series Installation and Hardware Guide External Ultra2 SCSI Connector (68-pin) Use the external Ultra2 SCSI connector on Channel A of the AAA-131U2/133U2 to connect your external Ultra2 and Ultra SCSI devices. For each external device, you will need to obtain a 68-pin external SCSI cable. Follow these steps to connect your external devices: Note: We recommend keeping Ultra2 devices on separate channels from non-Ultra2 devices. Peak transfer rates on Ultra2 channels are 80 MBytes/sec. Connecting a nonUltra2 device to an Ultra2 SCSI channel limits the entire channel to lower performance levels (up to 40 MBytes/sec). 1 Connect one end of the external SCSI cable to the external Ultra2 connector on the AAA-131U2/133U2. High-density 68-pin External Ultra2 SCSI Cable 68-pin External Ultra2 SCSI Connector Figure 2-13. Attaching an External Cable to the External Ultra2 Connector 2-16

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AAA-130U2 Series Installation and Hardware Guide
External Ultra2 SCSI Connector (68-pin)
Use the external Ultra2 SCSI connector on Channel A of the
AAA-131U2/133U2 to connect your external Ultra2 and Ultra SCSI
devices. For each external device, you will need to obtain a 68-pin
external SCSI cable. Follow these steps to connect your external
devices:
Note:
We recommend keeping Ultra2 devices on separate
channels from non-Ultra2 devices. Peak transfer rates on
Ultra2 channels are 80 MBytes/sec. Connecting a non-
Ultra2 device to an Ultra2 SCSI channel limits the entire
channel to lower performance levels (up to 40 MBytes/sec).
1
Connect one end of the external SCSI cable to the external
Ultra2 connector on the AAA-131U2/133U2.
Figure 2-13. Attaching an External Cable to the External Ultra2 Connector
High-density 68-pin External
Ultra2 SCSI Cable
68-pin External Ultra2 SCSI Connector